Universal Switching Relay w/ Internal Transformer Zoom

Universal Switching Relay w/ Internal Transformer

SKU:R8845U1003

Brand: Honeywell

Honeywell
Qty Price
$48.89
/ each
$95.90 / box (2 units x $47.95)
In Stock! Ships in 24-48 Hours
44 Available

Specs

Application: Zoning
Zones:
?
1
Width: 4-7/16"
Height: 6-1/4"
Amperage:
?
7.4
Power Method: 120V
Voltage:
?
120v
Hertz: 60
Depth: 3-1/2"
Ambient Conditions: 0-90% RH non-condensing
-20 F to +120 F
Switch Action: Two SPST
plus PowerPile® rated low voltage SPST relay
Relays: Low Voltage SPST
Thermostat Compatibility: Honeywell Electromechanical
Electronic 2-wire
Electronic 3-wire
Connection Type: 2-Wire
3-wire

Description for Honeywell R8845U1003

The R8845U Universal Switching Relay with 24 V transformer provides intermediate switching of line-and low-voltage devices from a line- or low-voltage controller and is typically applied in Hydronic heating systems.
Features

  • Replaceable socketed relays.
  • Two troubleshooting LED.
  • Push-to-test button.
  • Replaceable transformer fuse.
  • Low-voltage contact rating for Powerpile applications.
  • Long-life DC relay drive control technology.
  • Relay for use with external 24 Vac or 24 Vdc supply, with line-voltage control, or with internal 24 V transformer supply.
  • One model replaces many competitor models.
  • One model may replace many Honeywell models:R182A,B,C,J; R482A,B,C,J; R845; R882A,B,C,J and RA832.
Specifications
  • Description: Universal switching relay with internal transformer, two line voltage SPST relays and one low voltage SPST relay with PowerPile rating.
  • Application: Provides intermediate switching of line and low voltage devices from a line or low voltage controller
  • Switching Action: Two SPST, plus PowerPile½ rated low voltage SPST relay. (If normally closed contacts are needed, use RA889A).
  • Coil Ratings Current: 0.4A
  • Coil Ratings Voltage: 24 Vac
  • Thermostat Heat Anticipator Setting: 0.12A
  • Transformer Primary Rating: 120 Vac, 60 Hz
  • Transformer Secondary Rating: 24 Vac, 12 VA max., 9 VA available for external load. Secondary protected by replaceable 1A automotive fuse.
  • Temperature Range (F): (Ambient) -20 F to +120 F
  • Temperature Range (C): (Ambient) -29 C to +49 C
  • Thermostat Compatibility: Honeywell electromechanical and electronic 2- or 3-wire
  • Dimensions (in.): 6 1/4 in. high x 4 7/16 in. wide x 3 1/2 in. deep
  • Dimensions (mm): 159 mm high x 118 mm wide x 89 mm deep
  • Electrical Ratings -Primary Voltage: 120V; 60 Hz
  • Electrical Connections (Control Circuit): 2 or 3-wire
  • Operating Humidity Range (% RH): 0 to 90% RH, non-condensing
  • Approvals, Underwriters Laboratories Inc Listed: File No. E4436, Guide No. XAPX
  • Includes: Integral transformer, enclosure
  • Electrical Ratings (Primary Voltage): 120V, 60 Hz
  • Replacement Parts 32002190-001 Replacement Relays. Replacement Fuse: use a 1 A automotive fuse.
  • Contacts Electrical Ratings (120 Vac AFL) 7.4A AFL, 44.4A ALR on each set of line-voltage contacts. Maximum connected load is 2000 VA.
  • Approvals, Canadian Underwriters Laboratories Listed: Guide No. XAPX7.

Universal Switching Relay w/ Internal Transformer

REVIEW SNAPSHOT®

by PowerReviews
Honeywell Universal Switching Relay w/ Internal Transformer
 
4.0

(based on 1 review)

Ratings Distribution

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Reviewed by 1 customer

Displaying review 1

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1/28/2012
 
4.0

This controller works as advertised

By Pete

from Harwood, MD

Verified Buyer

Pros

    Cons

      Best Uses

        Comments about Honeywell Universal Switching Relay w/ Internal Transformer:

        I used this product to control an auxiliary external pump for hydronic heating. I used the 24v output control from an external source. The instructions are not geared toward this configuration but the online information specified it could be configured this way. If you can read an electrical diagram you can figure it out. The instructions include numerous examples of other configurations. I think an example of this type would have helpful. This is a versatile controller that is easy to set up.

        • Primary use:
        • Personal

        Bottom Line Yes, I would recommend this to a friend

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        Q&A: Ask the Questions, share answers

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        get answers from real customers and in-house experts with AnswerBox.

        4 Questions | 4 Answers
        Displaying questions 1-4
        • Honeywell Universal Switching Relay w/ Internal Transformer

          Q:

          I have 4 zone valves running off one circulator I was told I can run all of them with this relay box
          Asked on 1/5/2012 by Anonymous

          1 answer

          • CUSTOMER CARE

            A:

            We'd recommend a Taco ZVC404 or ZVC404-EXP (the -EXP version is "expandable" and can be combined with other -EXP controls).

            Answered on 1/13/2012 by PexSupply Staff from NY
        • Honeywell Universal Switching Relay w/ Internal Transformer

          Q:

          I have 4 zones. Do I need 4 switching relays 0r will this control 4 zones?
          Asked on 10/17/2011 by Anonymous

          1 answer

          • CUSTOMER CARE

            A:

            This can only control one zone, so you would need 4 switching relays. Another option would be to use the Taco SR504 switching relay, which can accommodate four zones.

            Answered on 10/18/2011 by PexSupply Staff from NY
        • Honeywell Universal Switching Relay w/ Internal Transformer

          Q:

          when I connect lines 1 and 2, and jump r-w on a switching relay (honeywell R8845U) should I get
          24V on X1-X2, also 120v should come out to connect circulator pump?
          Asked on 3/9/2011 by Fred

          1 answer

          • CUSTOMER CARE

            A:

            No, the X1 and X2 are dry, low-voltage rated contacts. A circulator may be wired to either COM and NO or to A and B, as both of these are line voltage rated contacts. They are also dry contacts.

            Answered on 3/11/2011 by PexSupply Staff from NY
        • Honeywell Universal Switching Relay w/ Internal Transformer

          Q:

          can you control 2 heating zone valves and 1 circulator pump with this control ?
          Asked on 11/4/2010 by hubby from new bedford , ma

          1 answer

          • CUSTOMER CARE

            A:

            No, you cannot. For that application, you need the Taco ZVC403-2.

            Answered on 11/5/2010 by PexSupply Staff from NY
        Displaying questions 1-4

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